Alfalfa and rice land checker.



I. B. TUBMAN.

ALFALFA AND'RICE LAND CHECKER.

APPLICATION FILED DEC. 21, 1915.

1,200,054. Patented Oct. 3,1916.

2 SHEETSSHEET I.

IN VEN TOR.

WITNESS.

J. B. TUBMAN. ALFALFA AND RICE LAND CHECKER.

APPLICATION FILED DEC.2I, I915.

1 00,05 Patented Oct. 8, 1916.

Z SHEETSSHEET 2.

IN VENTOR.

WITNESS.

WW I W -l TTED ATS rarnnr JOE BENTON TUBMAN, or WILLOWS, CALIFORNIA.

ALFALFA AND RICE LAND CHECKER.

mo est.

Specification of Letters Patent.

Patented 0a. a, rare.

Application filed December 21, 1915. Serial No. 67,985.

This invention relates to improvements in I graders and scrapers usedfor throwing up of check levees for preparation of land for irrigationespecially in connection with alfalfa and rice lands, the object of theinvention being to produce a double bladed scraper or grader having itsblades converging toward each other at one end whereby the land may bescraped and thrown up into the levee grade in a rapid and efficientmanner. Also the blades are capable of being raised and lowered for thepurpose of controlling the amount of land handled by the same at anygiven time and also for the purpose of transporting the device from onepoint to another.

A further object of the invention is to produce a means whereby when thescraping blades are lowered for action, additional weight may be forcedagainst them for the purpose of making the blades work deeper into thesoil or ground. I

A still further object of the invention 1s to produce a simple andinexpensive device and yet one which will be exceedingly effective forthe'purposes for which it is designed.

These objects I accomplish by means of such structure and relativearrangement of the parts as will fully appear by a perusal of thefollowing specification and claims.

In the drawings, similar characters of reference indicate correspondingparts in the several views.

Figure 1 is a top plan view of the complete device. Fig. 2 isa frontelevation of the same. Fig. 3 is a sectional view of a blade and itshanger. Fig. 4 is a fragmentary view showing the elevating and loweringmechanism.

Referring now more particularly to the characters of reference on thedrawings, the

invention consists primarily of a supportlng structure comprising a mainfront beam 1 having side beams 2 converging together at their rear endto form a substantial triangular supporting frame.

Suitably journaled at the converging point of the beams 2 is a pilotsupporting Wheel 3 and on each end of the front beam 1 is a supportingwheel 4, the supporting wheels 4 having spindles 5 projecting in aturnable manner through the beam 1, and each being provi6ded at itsupper end with a projecting arm The numeral 7 designates a linkconnecting the arms 6. 'A steering rod 8 connects one of the arms 6 withthe draw bar 9 which is suitably connected' to the supporting frame 111any desired manner. When the draw bar 9 is moved in'one' direction orthe other it operates the steering rod 8 to pull the arms 6 in suchdirection,-which, through the medium of the spindles 5, will turn thewheels 1 likewise in the desired direction.

The machine may be drawn forward by connecting the motive power with thedraw bar 9 which may be either an engine of any desired type, orsuitable animals for the purpose.

Paralleling the triangular frame and spaced a slight distance from eachside thereof, is a scraper blade 10. These blades edged along the lowersides with metal, or

if desired, the blades themselves may be made entirely of metal. Theseblades are connected with the supporting frame by means of the followingstructure, namely:

Hinged along the sides of the triangular supporting frame, as at 11, aresupporting hangers 12 which over-arch the blades 10 and are fastened tothe same, as at 13, each blade having brace bars 14L projecting upwardlytherefrom and connected with the hangers 12', as at 15. Fromapproximately the center of each of the blades 10 I connect a draw chain16 which connects with the forward ends of the triangular shapedsupporting frame, as at 17, so that with the forward motion of thesupporting frame the blades 10 will be pulled forward with the saidtriangular frame.

The raising and lowering of the blades 10, and the forcing of the sameinto the ground,

for scraping and leveling purposes is accomplished by means of thefollowing structure, viz: A supporting beam 18 projects substantiallycentral of the triangular supporting frame, and is provided with twoupwardly projecting supporting posts 19 and 20 journaled in which is aroller or shaft 21. On one end of the shaft 21 is a pinion 22 whichintermeshes with another pinion 23 on a shaft 24: journaled on the post20 and provided with an operating crank 25. On the shaft 24 is a ratchetwheel 26 engageable by a dog 27 mounted on the post 20 whereby the shaft21 may be held against rotation when desired.

Secured to the shaft 21 are two cables 27 which project outwardly andconnect with one of the hangers 12 on each of the blades 10. With theoperation of the crank 25 the shaft 241 is rotated causing the pinion 23to drive the pinion 22 and rotate the shaft 21 to wind the cables 27 onsaid shaft 21, which will raise or lower the blades 10 as may bedesired.

A cable 28 is secured to the shaft or roller 21 in the reverse directionto the cables 27 and extends downwardly under a pulley 29 .is rotated tounwind the cables 27 and allow the blades 10 to drop against the ground,this action simultaneously winds the cable 28 upon the said shaft 21.This action pulls the plate 31 downwardly and forces the links 32against the hangers 12 and forces the blades 10 to cut deeper into theground by reason of this action tending to throw the weight of thesupporting frame against the said blades.

From the foregoing description it can readily be seen that with theforward motion of the device the dual blades 10, converging as they dotoward each other at their rear ends, will scrape the dirt anddistribute it at the rear end into a grade either for levees or otherdesired formations. Also from the foregoing description it can readilybe seen that I have produced such a device as substantially fulfils theobjects of the invention as set forth herein.

While this specification sets forth in detail the present and preferredconstruction of the device, still in practice such deviations from suchdetail may be resorted to as do not form a departure from the spirit ofthe invention, as defined by the appended claims.

Having thus described my invention what I claim as new and useful anddesire to secure by Letters Patent is:

1. A device of the character described comprising the combination with asupporting frame, of a pair of scraper blades hinged to the supportingframe and converging toward each other at their rear ends, chainsconnected with the forward end of the frame and midway between thescraper blades, and means carried by the frame for raising and loweringthe scraper blades, as described.

2. A device of the character described comprising the combination with asubstantially triangular supporting frame, a pair of scraper bladesextending substantially parallel with two sides of the frame at a spaceddistance therefrom, rigid hangers hinged to the frame and arching overand being hinged to the outer sides of the scraper blades, and meanscarried by the frame for raising and lowering the blades, as described.

3. A device of the character described comprising a supporting frame,rigid hangers hinged to the supporting frame, scraper blades hinged tothe outer ends of said hangers, a shaft turnable on the supportingframe, and cables" connected with the hangers and arranged to be woundaround the shaft to raise the scraper blades, as described.

t. A device of the character described comprising a supporting frame,rigid hangers hinged to the frame, scraper blades hinged to the outerends of said hangers, a plate normally disposed above the plane of thehangers, links connected with the plate and with the hangers, a pulleydisposed in a lower plane than the plate, and a cable connected with theplate and extending under the pulley and arranged to be operated to drawthe plate downwardly to force the scraper blades downwardly, asdescribed.

5. A device of the character described comprising a supporting frame,blades hinged to the supporting frame, a rotating shaft on the frame,and means for rotating same, cables on the shaft connected with theblades for raising and lowering the same with the rotation of the shaft,another cable on the shaft arranged in a reverse position thereon to thefirst named cables, a plate having links connected with the blades, suchlast named cable extending under pulleys on the frame and beingconnected with such blade to draw the same downwardly when such lastnamed cable is wound upon the shaft, as described.

6. A device of the character described comprising a supporting frame,rigid hangers hinged to the frame, scraper blades hinged to the outerends of said hangers, a plate normally disposed above the plane of thehangers, links connected with the plate and with the hangers, a pulleydisposed in a lower plane than the plate, a cable connected with theplate and extending under the pulley and arranged to be operated to drawthe plate downwardly to force the scraper blades downwardly, and a shaftcarried by to the outer sides of the scraper blades, and the frame andarranged for operating said chains connected centrally of the blades andcable, as described. to the supporting frame, as described.

7 A device of the character described In testimony whereof I aflix mysigna- 5 comprising a supporting frame, scraper ture.

blades, rigid hangers hinged to the supporting frame and arching overand hinged J OE BENTON TUBMAN.

Copien of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. 0.

